New girl I’m dating told be about her last sexual encounter [cuckold’s perspective]

New girl I'm seeing told me about her last sexual encounter

I (29M) met this girl (23F) on a dating app, and we've been seeing each other for about a month. Some background, I have an STD (Herpes), and told her before we became sexually active so that she could make a decision of whether she wanted to risk it.

In the month we've been together, all we've done is make out, touch over clothes, and I've eaten her ass. She is adamant that until she decides, she doesn't want to do anything else.

Last night, while she was stroking me over a blanket, I told her to tell me about her most recent sexual encounter. She told me that after our first date, the very next night she had told me she was going out with friends, but instead, went to a guys place. She said they watched a movie, and he got handsy, and eventually pulled down her shirt and started sucking her DD breasts.

Then she said he carried her to the bedroom, laid her on the bed and they made out for awhile. She then got on her knees, and she said she gave him the sloppiest blowjob she had ever given. I asked if he was bigger than me, she moaned loudly and said yes. She said she sucked him off and swallowed his load. This made my heart flutter, as she won't even touch my penis after knowing me for a month, but swallowed this strangers cum.

Then she said he ate her out from behind, and fucked her raw without a condom, and it was the best sex she had ever had. I asked if she would fuck him again right now if he texted her, and she immediately said yes. I started rubbing her clit and she let out a huge moan and told me that he filled her up in a way that she didn't think I'd be able to, and she thought about it every time we did stuff.

This was my first time really exploring the cuck fantasy, and I'm not sure how I feel. On one hand it's super hot, but on the other I'm incredibly fucking jealous.